... and intelligent gadget 4 in-one Auto Gauge: trip computer, digital gauges, scan tool and car black box. 4 in-one Auto ... and intelligent gadget includes 4 most useful modes:trip computer, digital gauges, scan tool and car black box.< One year warranty< ... DistanceFuel UsedTrip Fuel EconomyDistance to EmptyTime to EmptyFuel to Empty Digital Gauges:The Turbo Gauge III can be configured to measure and ...